Add 54/16 and 42/20
1st number: 3 6/16, 2nd number: 2 2/20
54/16 + 42/20 is 219/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
54/16 = 54 × 5/16 × 5 = 270/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
42/20 = 42 × 4/20 × 4 = 168/80 - Add the two like fractions:
270/80 + 168/80 = 270 + 168/80 = 438/80 - 438/80 simplified gives 219/40
- So, 54/16 + 42/20 = 219/40
In mixed form: 519/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/16+84/20 54/32+42/20 54/16+42/40 54/48+42/20 54/16+42/60 54/80+42/20